[Pronounced bilateral mammary hypertrophy as a rare manifestation of acute lymphatic leukemia].

A 33-year-old patient, hitherto healthy, has been admitted for clarification of bilateral mammary hypertrophy. In the course of the usual routine examination a lump of the size of a cherry was identified in the right breast. Within 6 weeks both breasts had become tight and grown symmetrically to three times their original size.